diff --git a/App/Manager/Updater/CMSUpdaterManager.php b/App/Manager/Updater/CMSUpdaterManager.php
index b2042bda..a8b6674a 100644
--- a/App/Manager/Updater/CMSUpdaterManager.php
+++ b/App/Manager/Updater/CMSUpdaterManager.php
@@ -25,7 +25,7 @@ public function doUpdate(array $updateData): void
     {
         if (!isset($updateData['file_update'])) {
             Flash::send(Alert::ERROR, LangManager::translate('core.toaster.error'),
-                LangManager::translate('core.updates.errors.fileUpdate'));
+                LangManager::translate('core.updates.errors.nullFileUpdate'));
             return;
         }
 
diff --git a/App/Package/Core/Controllers/UpdatesController.php b/App/Package/Core/Controllers/UpdatesController.php
index a2442ecc..58ee430b 100644
--- a/App/Package/Core/Controllers/UpdatesController.php
+++ b/App/Package/Core/Controllers/UpdatesController.php
@@ -5,6 +5,9 @@
 use CMW\Controller\Users\UsersController;
 use CMW\Manager\Api\PublicAPI;
 use CMW\Manager\Cache\SimpleCacheManager;
+use CMW\Manager\Flash\Alert;
+use CMW\Manager\Flash\Flash;
+use CMW\Manager\Lang\LangManager;
 use CMW\Manager\Package\AbstractController;
 use CMW\Manager\Router\Link;
 use CMW\Manager\Updater\CMSUpdaterManager;
@@ -78,6 +81,14 @@ private function adminUpdatesInstall(): void
     {
         UsersController::redirectIfNotHavePermissions('core.dashboard', 'core.update');
 
+        $currentVersion = UpdatesManager::getVersion();
+
+        if ($currentVersion === 'DEV') {
+            Flash::send(Alert::ERROR, LangManager::translate('core.toaster.error'),
+                LangManager::translate('core.updates.errors.devVersion'));
+            Redirect::redirectPreviousRoute();
+        }
+
         // We get all the new version id.
         $versions = PublicAPI::postData('cms/update', ['current_version' => UpdatesManager::getVersion()]);
 
diff --git a/App/Package/Core/Lang/en.php b/App/Package/Core/Lang/en.php
index 898103e4..51094159 100644
--- a/App/Package/Core/Lang/en.php
+++ b/App/Package/Core/Lang/en.php
@@ -318,6 +318,7 @@
             'deletedFiles' => 'Unable to delete old files.',
             'deleteFile' => 'Unable to delete file %file%',
             'sqlUpdate' => 'Unable to update your database.',
+            'devVersion' => 'You are using a development version of CraftMyWebsite, updates are not available.',
         ],
         'success' => 'Website update with success',
     ],
diff --git a/App/Package/Core/Lang/fr.php b/App/Package/Core/Lang/fr.php
index d737bb35..39f887fd 100644
--- a/App/Package/Core/Lang/fr.php
+++ b/App/Package/Core/Lang/fr.php
@@ -318,6 +318,7 @@
             "deletedFiles" => "Impossible de supprimer les anciens fichiers.",
             "deleteFile" => "Impossible de supprimer le fichier %file%",
             "sqlUpdate" => "Impossible de mettre à jour la base de données.",
+            'devVersion' => 'Vous utilisez une version de développement de CraftMyWebsite, impossible de mettre à jour.',
         ],
         'success' => 'Mise à jour de votre site réussie',
     ],